Bioinspired Design and Assembly of Platelet Reinforced Polymer Films
Open accessAbstract
Although strong and stiff human-made composites have long been developed, the microstructure of today's most advanced composites has yet to achieve the order and sophisticated hierarchy of hybrid materials built up by living organisms in nature. Clay-based nanocomposites with layered structure can reach notable stiffness and strength, but these properties are usually not accompanied by the ductility and flaw tolerance found in the structures generated by natural hybrid materials. By using principles found in natural composites, we showed that layered hybrid films combining high tensile strength and ductile behavior can be obtained through the bottom-up colloidal assembly of strong submicrometer-thick ceramic platelets within a ductile polymer matrix.
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High volume fraction reinforcement composites using layer-by-layer and freeze-casting techniques have strengths of hundreds of MPa, an order of magnitude lower than limpet tooth strength.
“Additional comparisons could be made by consideration of high volume fraction reinforcement composites using layer-by-layer [31,32] and freeze-casting techniques [33,34]. In these cases, the composite material strengths are hundreds of MPa, highlighting the order of magnitude enhancement in tensile strength and general extreme mechanical performance of the limpet tooth samples.”
From Extreme strength observed in limpet teeth (2015) · cites this paper as [32]
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Extreme strength observed in limpet teeth
Barber, A. H., Lu, D., & Pugno, N. M. (2015) · Journal of the Royal Society Interface · doi:10.1098/rsif.2014.1326 · Cited by 218 · see citing works
Optimized nanoscale composite behaviour in limpet teeth
Lu, D., & Barber, A. H. (2012) · Journal of The Royal Society Interface · doi:10.1098/rsif.2011.0688 · Cited by 62 · see citing works
- Authors
- Bonderer, L. J., Studart, A. R., & Gauckler, L. J.
- Affiliations
- ETH Zurich (CH)
- Department of Materials, Eidgenössische Technische Hochschule (ETH)–Zürich, 8093 Zürich, Switzerland.
- Corresponding author
- Gauckler, Ludwig J.
- ORCID
- Gauckler, Ludwig J.
- Venue
- Science
- Published
- 2008-02-22
- Volume
- 319
- Issue
- 5866
- Pages
- 1069-1073
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2032544789
- Cited by
- 1,031
- References
- 0
- Citations by year
- 2026: 13 · 2025: 34 · 2024: 34 · 2023: 36 · 2022: 42 · 2021: 49 · 2020: 74 · 2019: 64 · 2018: 69 · 2017: 84 · 2016: 81 · 2015: 93 · 2014: 72 · 2013: 82 · 2012: 63
- FWCI
- 20.14
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Licence
- other-oa
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Repository for Publications and Research Data (ETH Zurich) (acceptedVersion, other-oa)
- ETH Zürich Research Collection
- Topics
- Physical Sciences › Materials Science › Biomaterials › Calcium Carbonate Crystallization and Inhibition
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer Nanocomposites and Properties
- Physical Sciences › Materials Science › Biomaterials › Clay minerals and soil interactions
- Keywords
- biomimetic materials, colloidal assembly, bottom-up assembly, ductility, tensile strength, clay nanocomposites, hierarchical microstructure, flaw tolerance, polymer-ceramic composites
- MeSH terms
- Aluminum Oxide, Animals, Ceramics, Colloids, Mollusca, Polymers, Tensile Strength, Biomimetic Materials, Chitosan, Nanocomposites
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